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Installation process 1 download the sofa butler APK to U disk → 2U disk to connect the TV USB interface → 3 security to open the U disk to select music, continuous press the OK key → 4 to open the U disk sofa butler installation
Steps 
Panasonic TV L3500C series through the U disk installation sofa butler application market, free to watch live to see VIP movies to share.
first step:
Baidu search for "sofa manager" into the sofa network, download the sofa butler package; or directly click the link (http://app.shafa.com/shafa.apk) to download the sofa butler package. Copy the downloaded apk installation package to the U disk.
The second step:
The recently installed Panasonic TV has blocked the installation of the APK. When the file management is clicked to install, there is a prompt to prohibit installation. Therefore, we first do the lifting of the ban: Press the remote control menu - Settings - Image - Backlight - OK, in the progress bar state, press the "Up button" 6 times, you can unlock the ban.
third step:
Open the Panasonic TV L3500C file browser, select the U disk in the sofa housekeeper, confirm the installation.
the fourth step:
Open the already installed sofa butler TV application market, through the sofa butler you can download Panasonic TV L3500C series for free live micro-broadcast, HDP live to watch the national TV station, download pudding video, iqiyi TV and other applications to see the latest movies and TV series , And no advertising Oh! Of course, the sofa butler covers all of the country's TV applications. You can download other applications that you need.